# Description

This MR implements a long-awaited feature of separating out the UI and
UI-related operations outside the environment class.

The user can also set the UI window class themselves through the
configuration. This makes the UI window modular and provides more
freedom for future additions.

## Type of change

- New feature (non-breaking change which adds functionality)

## Screenshots

Also updated the GUI with various functionalities. This was kind of the
motivation to separate out the UI into a different window.


![new-gui](https://github.com/isaac-orbit/orbit/assets/12863862/813bc39f-a968-4222-a1d9-d5c4df72653d)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./orbit.sh --format`
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file

---------
Signed-off-by: Mayank Mittal <12863862+Mayankm96@users.noreply.github.com>
Co-authored-by: David Hoeller <dhoeller@ethz.ch>